I have a 2007 Chevy Cobalt front end roar

I had all 4 tires changed last September and then this June I started having a roaring noise in the front end of it. It sounds like an airplane getting ready to take off but never leaves. I've had the tires rotated and that didn't help. The noise starts at about 20 mile per hour and never gets any worse but never any better until I stop. It's very loud. When I turn corners the noise never changes either. I can feel the transmission changing gears so I know that it's not slipping. Anyone have any ideas why the noise?

Yup, front wheel bearings. If its in the budget, and if they haven't
already been done, do the front axle shafts at the same time.
Make sure they use good quality American made wheel bearings
so you don't end up doing it again in a year or so.

I have a 06 Chevy Cobalt and it started sputtering the other day all of a sudden. We changed the oil and that didn't help. put in new spark plugs that helped some but not much. A new engine was put in...

So, here is the low down of whats going on... I have a 2009 Chevrolet Cobalt LT2 Coupe... I have taken it to my local dealer to have the front end looked at MULTIPLE times due to an unexplained noise....

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